Chinese police and miners keep warm at the entrance to the mine near Leiyang city in central China's Hunan province, in February. Rescuers pulled four miners out of a flooded coal mine in Hunan ... more&nbsp

Chinese police and miners keep warm at the entrance to the mine near Leiyang city in central China's Hunan province, in February. Rescuers pulled four miners out of a flooded coal mine in Hunan province on Sunday, more than three days after an accident trapped them underground, according to state media less&nbsp